Individual cubelets cubelets 855165004000 cubelets are a groundbreaking robot construction system designed for budding innovators aged four and up cubelets uses tiny robots to teach the big lessons behind complex systems design thinking and emergence remote control or reprogram add to any cubelets kit to extend your robot the bluetooth cubelet contains a tiny bluetooth radio that you can pair with your phone tablet or pc the bluetooth cubelet 20 is compatible with ios and android dev